Do I need a permit for shed or accessory structure in San Antonio?
It depends. Whether shed or accessory structure needs a permit in San Antonio comes down to the details of your project.
Many Texas cities exempt small accessory buildings. Dallas, for example, exempts a utility building under 200 square feet with no electrical, plumbing, or gas on single-family or duplex premises, but running utilities to a shed or exceeding the size threshold triggers a permit. Zoning setbacks and easement restrictions still apply even when a building permit is not required, so verify placement with your local building department. The No Permit Required List exempts one-story detached tool/storage sheds and playhouses whose floor area does not exceed 300 square feet, provided they meet the setback rules in UDC Sec. 35-370(b); a larger shed needs a permit. Any power or water run to the shed triggers separate electrical, mechanical, or plumbing permits that only a state-licensed trade contractor can pull. Even an exempt shed can be restricted by design and material rules if the property is in a Historic, Neighborhood Conservation, or Corridor District, and tree preservation rules may apply to the site. A shed that will have electricity, plumbing, or a permanent foundation falls outside the usual small accessory building exemption, which generally covers simple unpowered structures only. Electrical and plumbing work each normally require their own permit and inspection even when the structure itself would have been exempt, and many jurisdictions require a licensed electrician or plumber to pull them. Zoning setbacks, height limits, and lot coverage are reviewed separately from the building permit, so confirm placement with your local department before the shed is delivered or poured.
Documents you may need
- Permit applicationSometimes required
- Site plan showing setbacksLikely required
- Structural plans for larger structuresSometimes required
- Residential Improvements Permit Application through BuildSA for an accessory building over 300 square feet and up to 1,000 square feet, one storySometimes required
- Residential Building Permit Application (plan review) for an accessory structure over 1,000 square feet or two storiesSometimes required
- Site plan showing the structure size, location, and setbacks under UDC Sec. 35-370(b)Sometimes required
Possible inspections
- Foundation or setback inspection
- Final inspection
- Plan review for structures over 1,000 square feet or two stories
- Building inspection when a permit is issued
Frequently asked questions
- Do I need a permit for shed or accessory structure in San Antonio?
- It depends. Whether shed or accessory structure needs a permit in San Antonio comes down to the details of your project. Many Texas cities exempt small accessory buildings. Dallas, for example, exempts a utility building under 200 square feet with no electrical, plumbing, or gas on single-family or duplex premises, but running utilities to a shed or exceeding the size threshold triggers a permit. Zoning setbacks and easement restrictions still apply even when a building permit is not required, so verify placement with your local building department. The No Permit Required List exempts one-story detached tool/storage sheds and playhouses whose floor area does not exceed 300 square feet, provided they meet the setback rules in UDC Sec. 35-370(b); a larger shed needs a permit. Any power or water run to the shed triggers separate electrical, mechanical, or plumbing permits that only a state-licensed trade contractor can pull. Even an exempt shed can be restricted by design and material rules if the property is in a Historic, Neighborhood Conservation, or Corridor District, and tree preservation rules may apply to the site. A shed that will have electricity, plumbing, or a permanent foundation falls outside the usual small accessory building exemption, which generally covers simple unpowered structures only. Electrical and plumbing work each normally require their own permit and inspection even when the structure itself would have been exempt, and many jurisdictions require a licensed electrician or plumber to pull them. Zoning setbacks, height limits, and lot coverage are reviewed separately from the building permit, so confirm placement with your local department before the shed is delivered or poured.
- Who issues the permit in San Antonio?
- The local building department for San Antonio handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.